Please configure Tomcat for logging and restart TC http://tomcat.apache.org/tomcat-5.5-doc/logging.html
Once the exceptions are noted in %TOMCAT_HOME%/logs please display the contents of the log so we can be of further assistance Thanks, Martin ______________________________________________ Disclaimer and Confidentiality/Verzicht und Vertraulichkeitanmerkung / Note de déni et de confidentialité This message is confidential. If you should not be the intended receiver, then we ask politely to report. Each unauthorized forwarding or manufacturing of a copy is inadmissible. This message serves only for the exchange of information and has no legal binding effect. Due to the easy manipulation of emails we cannot take responsibility over the the contents. Diese Nachricht ist vertraulich. Sollten Sie nicht der vorgesehene Empfaenger sein, so bitten wir hoeflich um eine Mitteilung. Jede unbefugte Weiterleitung oder Fertigung einer Kopie ist unzulaessig. Diese Nachricht dient lediglich dem Austausch von Informationen und entfaltet keine rechtliche Bindungswirkung. Aufgrund der leichten Manipulierbarkeit von E-Mails koennen wir keine Haftung fuer den Inhalt uebernehmen. Ce message est confidentiel et peut être privilégié. Si vous n'êtes pas le destinataire prévu, nous te demandons avec bonté que pour satisfaire informez l'expéditeur. N'importe quelle diffusion non autorisée ou la copie de ceci est interdite. Ce message sert à l'information seulement et n'aura pas n'importe quel effet légalement obligatoire. Étant donné que les email peuvent facilement être sujets à la manipulation, nous ne pouvons accepter aucune responsabilité pour le contenu fourni. > Date: Sat, 11 Apr 2009 07:27:04 -0700 > From: egidi...@click2sell.eu > To: users@tomcat.apache.org > Subject: Re: Tomcat is not serving requests - but not crashed... > > > Here are some configuration details: > > Server: Linux CentOS Linux version 2.6.18-8.1.14.el5PAE > (mockbu...@builder7.centos.org) (gcc version 4.1.1 20070105 (Red Hat > 4.1.1-52)) > Server version: Apache Tomcat/5.5.23 > Server built: Mar 5 2007 08:25:04 > Server number: 5.5.23.0 > OS Name: Linux > OS Version: 2.6.18-8.1.14.el5PAE > JVM Version: 1.5.0_12-b04 > JVM Vendor: Sun Microsystems Inc. > > Apache serves as main web server in front of tomcat, apache is communicating > with tomcat via AJP protocol. > > Tomcat process running with the following command: > /usr/java/jdk/bin/java -Xms1024m -Xmx2048m -Djava.awt.headless=true > -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager > -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties > -Djava.endorsed.dirs=/usr/local/tomcat/common/endorsed -classpath > :/usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/commons-logging-api.jar > -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat > -Djava.io.tmpdir=/usr/local/tomcat/temp > org.apache.catalina.startup.Bootstrap start > > > Bugzilla from gsex...@mhsoftware.com wrote: > > > > Your description is pretty short of information. It's unlikely you will > > get any useful comments. If you would like help, you'll have to provide > > more information. > > > > Which version of 5.5? > > > > What JVM? > > > > What Operating System? If Linux, what Kernel? If Windows, what version > > and Service Packs? > > > > What command line arguments are you using for the JVM? > > > > kegliuz wrote: > >> Hello guys, > >> > >> We are running a Tomcat 5.5 version through proxy_ajp mode via a regular > >> Apache webserver. > >> > >> Within last 2 weeks we had 2 strange downtimes of our system. Our > >> application is running on Tomcat 5.5. > >> > >> ************ > >> 1 CASE > >> > >> One morning I woke up and noticed our website is down. I logged into the > >> server and checked for running processes. > >> The servers load was around 4% (while normally it's around 1%). I checked > >> Tomcat and it was still running, however, the webserver did not respond > >> to > >> any queries. The browser was unable to load our website. > >> > >> So I tried to restart Tomcat: > >> 1) to stop the service > >> and then > >> 2) start it. > >> > >> When I ran a command: service tomcat stop - the Tomcat tried to shut > >> down. > >> However it stopped responding... No status on command line, nothing. It > >> looked like the server halted. So I had to re-login to the server once > >> again > >> and then again to run the same command to stop tomcat. > >> > >> Tomcat started to respond only the 2nd time and it stopped. > >> > >> Then I ran a command to start tomcat: service tomcat start > >> Tomcat did not start for the first time. Well, it started, however, it > >> did > >> not respond. > >> So I had to stop it once again and then ran a start command once again to > >> get it up and running. > >> This time Tomcat started successfully and the application started to > >> work. > >> > >> > >> However, the question is: who caused the problem with Tomcat not > >> responding? > >> It did not crash, however, the web server was no functioning and unable > >> to > >> process requests. > >> > >> I checked our ping software's logs to see for a downtime and noticed that > >> downtime started to appear something like this: > >> > >> 5 minute intervals > >> down... > >> down... > >> OK! > >> OK! > >> down... > >> OK! > >> down... > >> down... > >> down... > >> down... > >> down... > >> until i finally restarted the server. > >> > >> Tomcat did not fully crashed, however, it was not serving the requests. > >> ************* > >> 2 CASE > >> ************* > >> > >> This week I woke up again in the morning and I noticed that Tomcat is > >> serving everything really slow... It was taking 2 minutes or so to load > >> the > >> website, however, this time it was serving (at least!). > >> > >> I went to restart Tomcat and application this time again and got the same > >> issues as described in CASE 1. Not responding, etc. > >> I had to stop tomcat, relogin, stop it again, then start it, stop it and > >> finally start it again and it started working. > >> > >> > >> So my question: what should we do in order to find a reason what's > >> causing > >> these Tomcat's downtimes? How to prevent them? > >> We tried checking all tomcats logs, etc. but did not find any real > >> problems. > >> > >> Please, help us to identify the problems so we could fix it... Any > >> suggestions? > >> > >> Thank you in advance! > >> > >> Sincerely, > >> Keglius > > > > -- > > George Sexton > > MH Software, Inc. > > Voice: +1 303 438 9585 > > URL: http://www.mhsoftware.com/ > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > > For additional commands, e-mail: users-h...@tomcat.apache.org > > > > > > > > -- > View this message in context: > http://www.nabble.com/Tomcat-is-not-serving-requests---but-not-crashed...-tp22990181p23001710.html > Sent from the Tomcat - User mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > _________________________________________________________________ Rediscover Hotmail®: Get e-mail storage that grows with you. http://windowslive.com/RediscoverHotmail?ocid=TXT_TAGLM_WL_HM_Rediscover_Storage1_042009
